bellonby



' L. A. BELLONBY.

MOLD.

APPLICATION FILED OCT. 22, 1918.

1,309,607. Patented July 15, 1919.

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I APPLICATION FILED OCT- 22.1918. I ,3'O9,607. Patented July 15, 1919.

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in II" I gnvewtoz MOT/VI 013 LEONARD A. BELLONBY, OF DAYTON, OHIO.

MOLD.

Specification of Letters Patent.

Patented July 15, 1919.

Application filed October 22, 1918. Serial No. 259,233.

To all whom it may concern:

Be it known that I, LEONARD A. BELLONBY, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Molds, of which the following is a specification.

The invention provides a mold for giving shape to building units, such as bricks or blocks, constructed of concrete or similar material, and relates most especially to the manufacture of bricks or blocks of U form.

The invention aims to provide a mold which enables the bricks to be quickly and economically constructed, which readily clears the bricks when the latter are cured and which may be set up and handled with the greatest ease and facility.

The invention consists of a mold embodying a core, an enveloping frame and adjunctive parts of novel construction and eculiar arrangement as will appear more ful y hereinafter.

The drawing illustrates a preferred embodiment of the invention; however, it is to be understood that in adapting the same to meet different conditions, various changes in the form, proportion, and minor details of construction may be resorted to without departing from the nature of the invention as claimed hereinafter.

Referring to the accompanying drawings:

Figure 1 is a top plan view of a gang of molds embodying the invention.

Fig. 2 is an end view showing the parts on a larger Scale.

Fig. 3 is a side view of a mold embodying the invention, the side walls being omitted and a portion being broken away.

Fig. 1 is a sectional detail on the line 44 of Fig. 3, looking to the left as indicated by the arrows.

Fig. 5 is a sectional view on the line 5-5 of Fig. 3, looking in the direction of the arrows.

Fig. 6 is a detail perspective view of an end wall and the spacers attached thereto.

Fig. 7 is a detail view showing the manner of retaining the mold within confining frame.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by li'ke reference characters.

. The mold, embodies essentially a core and an enveloping frame. The mold space is of lJ form and the bricks, blocks and like building units are molded with their back or closed ends uppermost. The enveloping frame contemplates side walls as well as end walls, the side walls touchin the edges of the end walls and the outer sides of the core. The enveloping frame and the core are prcferably formed of sections which are so related as to be self sustaining when assembled and of such construction as to be quickly set up and easily taken apart after the bricks have been cured.

The enveloping frame comprises oppositely disposed angle bars 1 which are arranged with their angles facing inward, as shown most clearly in Figs. 1 and 5, said bars presenting a substantiallv V shape. The angle bars 1 may be of any length and are spaced apart a distance depending upon the thickness of the brick to be molded. The angle bars 1 are held in the predetermined position by means of interposed spacers 2 which, as shown most clearly in Fig. 6, are of U form and have the end portions of the spaced members bent outwardly, as indicated at 3, and notched in their extremities, as shown at 4, to receive the wings con'iprising the angle bars.

The end walls 5 have their lower ends secured between the angle bars 1 and for this purpose notches 6 are formed in opposite edges thereof to receive the angle bars. The spacing members 2 are secured to the lower ends of the end walls 5 by rivets or fastenings 7. The notches 4 in the outwardly deflected ends of the spacers 2 correspond with the notches 6 formed in the edges of the lower ends of the end walls 5. As a result of this arrangement the spacers 2 also serve to hold the end walls 5 in vertical position and such end walls in turn supplement the action of the spacers 2 in holding the angle bars 1 spaced apart the required distance. When the mold is of such construction as to be used singly it is to be understood that the end walls 5 will be provided with spacing members 2 on their inner faces only, but when the mold is constructed to be used in a gang the end walls 5 will be provided upon opposite sides with spacing members 2, as indicated most clearly in Fig. 6.

The core comprises two similar or like parts and since such parts are duplicates a detailed description of one will suflice for a clear understanding of both. Each part or section of the core comprises a U-shaped frame 8 having an inwardly extending flange 9 at its outer edge to stiffen and strengthen the frame as well as to provide'an extended bearing between the outer edge of the frame and the adjacent side wall of the mold. The frame 8 is splayed and flares inwardly, as indicated most clearly in Figs. 4 and 5, so as to clear the brick after the latter has been cured or has hardened sufficiently to admit of removing the mold. The frame 8 is secured at its lower end to an angle bar 10 thelatter having depending portions-11 near its ends to which depending portions 12 at the lower ends of the upright members of the frame 8 are secured by means of rivets or like fastenings 1 3. A stay piece 14 is disposed within the lower portion of the U frame 8 and comprises a plate having an inner extension 15 at its upper edges and an inner extension 16 at its lower edge, said extenisons 15 and 16 constituting edge portions of the plate which are bent inwardly therefrom so as to come between the upright members of the frame 8. A plate 17 overlaps the inner extension 16 of the stay 14 and said inner extension 16 is confined between the plate 17 and the horizontal wing or flange of the angle bar 10, the several parts being secured by means of fastenings 18. It will thus be understood that each section or part of the core comprises a U frame 8, an angle bar 10, a stay 14 and a confining plate 17, the several parts being made secure by the fastenings 18. The end portions of the angle bars 10 project beyond the upright members of the frame 8 so as to receive securing means whereby both parts or sections of the core are held together and to the base portion or angle bars 1 of the enveloping frame.

The securing means for the core sections or parts are of like formation and each consists of a plate 19 and pairs of spring fingers at the ends of the plate. Each spring finger comprises an upper portion 20 to engage the depending portion ofthe angle bar 10 and a lower portion 21 to engage the up per wing or element of the angle bar 1. The construction is such that the securing means for the sections or parts of the core also serve to retain the angle bars 1 of the enveloping frame in proper position. The plates 19 close the spaces at the lower ends of the spaced portions of the mold. The plate 19 is humped or arched intermediate of its ends, as indicated at 22, thereby providing spaces in the ends of the legs of the bricks or building units for receiving the mortar or other building material. The mold securing means or clips may be placed in position upon the projecting ends of the angle bars 10 either by being pressed downwardly from above or slipped endwise upon such projecting ends. After the parts comprising the core have been secured by means of the clips said core is secured to the angle bars 1 of the enveloping frame by pressing the clips downward thereby causing the end portions 21, of the spring fingers to snap over the angle bars 1 and thereby retain such angle bars in the predetermined position and at the same time securing the core thereto.

Fig. 1 indicates a plurality of molds used in gang, the molds being disposed in lines and each line of molds comprising two sets of molds, the molds of the two sets being separated by means of an intermediate conditional partition 23 and the several mgolds being disposed within a frame 24. Longitudinal bars 25 are disposed at the ends of the frames 24 and are bound together by means of sky rods 26 each including a turnbuckle 27. Suitable spearing pieces will be interposed between the confining frame 24.

As shown in Fig. 7 the frame 24 has inner extensions or flanges .28 and 29 between which the bars 1 are received to hold the molds in place both when receiving the material and discharging the bricks. The molds are filled from above and are turned to discharge the bricks from below.

The foregoing description and the drawings have reference to what may be considered the preferred, or approved, form of my invention. It is to be understood that I may make such changes in construction and arrangement and combination of parts, materials, dimensions, et cetera, as may prove expedient and fall within the scope of the appended claims.

Havin thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. A mold of the character specified comprising longitudinal bars, spacers between the bars and walls retained in proper position by means of the spacers.

2. A mold comprising longitudinal bars, spacers between the bars and walls secured to the spacers and retained in position thereby.

3. In a. mold of the character specified, longitudinal bars, U-shaped spacers between the longitudinal bars and having the end portions of the spaced members outwardly deflected and engaging the bars and walls confined between the longitudinal bars and retained in place by means of the said spacers.

4. In a mold of the character specified,

longitudinal bars, walls having their lower ends disposed between the barsand notched in the edges to receive the said bars and spacers secured to the wall and projecting therefrom and having their outer ends outwardly deflected and notched to receive the longitudinal bars.

5. In a mold of the character set forth, spaced angle bars, end walls dis osed between the angle bars and. notched in their edges to receive the angle bars and U-shaped spacers secured to the end walls and having the ends of their side members outwardly deflected and notched to receive the said angle bars.

6. In a mold of the character specified, a core comprising similar parts each consisting of a U-shaped frame and a bar connecting the lower end of the upright members of the frame, said bar having its end portions projecting beyond the upright members of the U-shaped frame.

7 In a mold of the character specified, a core comprising like parts each consisting of a U-shaped frame, a bar secured to the lower ends of the upright members of the frame and having its uprights projecting of the frame and a stay secured to the intermediate portion of the bars and disposed between the lower ends of the upright members of the frame.

8. A mold, cOmprising a frame, a core mounted on the frame and comprising complemental members and means connecting the members comprising the core and securing the said core to the frame.

9. A mold, comprising longitudinal bars, a core mounted on the frame and comprising complemental members and means connecting the members comprising the core securing the longitudinal bars and holding the core in place upon the said bars.

Copies of this patent may be obtained for flve cents each, by addressing the 10. A mold, comprisin a frame, a core mounted on the frame an comprising complemental members, and means connecting the members of the core and embodying 0ppositely disposed spring elements engaging the said members and the frame to hold the parts in given position.

11. A mold, comprising longitudinal bars, a core mounted on the bars and comprising complemental members and means connecting the members and bars and securing the core to said bars, said means embodying oppositely disposed spring elements having defined portions for engaging the members and bars respectively.

12. A mold, comprising longitudinal bars, a core embodying complemental members mounted upon the bars and having oppositely disposed projections and connecting means resting upon the said projections and embodying oppositel disposed spring elements to engage the SIC es of the projections and the bars to hold the members of the core together to secure the bars and to retain the core in position upon the bars.

In testimony whereof I aifix my signature in presence of two witnesses.

LEONARD A. BELLONBY.

Witnesses:

C. E. MoMILLnN, J. R. BEA'rLiY.

Commissioner of Patents,

Washington, D. 0. 

